The sugar was quite low! If I have to say that, considering that normally I always reduce the level of sugar in almost all my cake recipes, here I did not do it but it was really low on sweetness. Add more sugar if you want.
I am sure this cake would have tasted awesome with the suggested frosting but I had no patience to go for the frosting! Hehe... maybe with the frosting, the level of sugar in the cake sounds fine...